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PATENTED FEB. 23, 1904. 0. C. DURNBY.

DESK.

APPLIUATION FILED Nov. ze. 1901.

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UNITED STATES atented. February 23, 1904.

OLIVER. CHARLES DORNEY, OF ALLENTOWN, PENNSYLVANIA.

DESK.

SPECIFICATION forming 'part of Letters Patent No. 753,050, datedFebruary 23, 1904.

Application filed November Z6, 1901. Serial No. 83,686. No model.)

1b a/L ich/0m t may concern:

Beit known that I, OLIVER CHARLES Don- NEY, a citizen of the UnitedStates, and a resident of Allentown, in the county of Lehigh and Stateof Pennsylvania, have invented a new and AImproved Desk, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in desks designed to be used inschool-rooms, libraries, or the like; and the object is to provide adesk of simple construction that may be readily and quickly adjusted asto heightk and having all conveniences for a person in reading, writing,or study. y

I will describe a desk embodying my invention and then point out thenovel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a front elevation of a desk embodying my invention with aportion broken away to clearly show the interior parts. Fig. 2 is an endelevation thereof. Fig. 3 is a section on the line 3 .3 of Fig. 1. Fig.4 is a section on the line 4 4 of Fig.` 2. Fig. 5 is a section on theline 5 5 of Fig. 4. Fig. 6 is a sectional detail showing an adjustingmeans employed. Fig. 7 is a section on the line 7 7 of Fig. 2. Fig. 8 isa perspective view of a locking device employed; and Figs. 9 and 10 arerespectively front and end elevations of a desk, showing a modification.

Referring to the drawings, 10 designates the cabinet portion of thedesk, in which any desired number of shelves may be placed. I have hereshown a shelf 11 supported on brackets, which may be adjusted up ordown, as desired. These brackets may be provided with pins to enterholes formed in end walls of the cabinet. The cabinet is supported byand is adjustable vertically with relation to a base consisting of legs12, and the cabinet is steadied and guided inits movements by means ofclips 13, attached to the inner side of the rear wall of the cabinet andengaging guideribs 14 on the rear edges of the legs. As a means forraising and lowering the cabinet I employ screw-rods 15, which passupward within the cabinet and are secured to the top thereof, as clearlyshown in Fig. 4. The screws pass through openingsin the upper and lowerwalls of boXings 16, formed on the upper ends of the legs 12, and theyare engaged by sleeve-like nuts 17, arranged between said upper andlower walls.

within the cabinet, and hasA bearings' in end walls of the boxings 16. Awinding-pinion 23 engages with one of the bevel-gears 19,`and the shankportion is made angular to receive a key. Obviously by turning theportion 23 by means of the key the gear-wheelengaged by said pinion 23willbe. rotated, and thus rotate the shaft 21 andthe gear 19 at the opfposite end, so that the screw-rods may be si- 'multaneously raised orlowered. l

It may sometimes be found necessary to adjust the desk a certain heightto accommodate it to the height oi' a' child or person. I have,-therefore, provided one of the legs at its outer sidefwith a scale25fmarked oii in inches, and this scale may be read at the lower end oi'one of the side walls of the cabinet. I have here shown the end wall atthe portion where the scale is to be read as beveled off or thinned, asat 26.

A foot-rest, consisting of a bar 27, is adjustably connected to the legsand at its ends is provided with upwardly-extended arms 28, which areslotted to receive bolts 29, engaging in brackets 30, extended inwardfromthe legs.

The front closure for the desk or cabinet consists of a lower section 31and an upper section 32. The lower section 31, designed as awriting-table, has hinge connection with the lower or bottom wall of thecabinet, and it is supported in its horizontal position by means of linkstraps 33, connected at one end to the cabinet and at the other end tosaid To reduce vthe fric-- tion, I arrange antifriction-balls betweenlthe IOO Writing-section of the front. The upper section 32 is designedto support a book or manuscript, and therefore it is made adjustable toany desired angle and to accommodate a person reading while sitting orstanding. For instance, it may be turned ata downward angle, asindicated in full lines in Fig. 2, to support a book on its upper sidefor the accommodation of a person sitting in front of the desk, or itmay be turned to an upward angle, as indicated in dotted lines in saidfigure, to support a book or manuscript for the accommodation of aperson while standing. At the lower edge of its outer side it isprovided with a stop-cleat 34, and near the lower edge of its inner sideit is provided with a stop-cleat 35.

As a means for locking the section 32 in its adjusted position I employperipherallynotched wheels 36, which have inwardly-extended arms orbrackets 37, provided with openings through which screws may pass intosaid section 32. These wheels 36 are rigidly connected to a shaft 38,having bearings 39 attached to the cabinet. A sliding lockingbar 40 isdesigned for engagement with the wheels 36. As here shown, this bar 40slides in guides-41, attached to the upper wall of. the cabinet, and atone end it is provided with a tooth 42 for engaging in a notch of thewheel.

at that end, while at the other end it is provided with a tooth 43 forengaging in a notch of the wheel at said other end. rIhis lockingbar 40extends at one end outward through an opening in the end wall of thecabinet and is provided with a finger-piece 44. Obviously by drawing therod 4() outward the ngers 42 and 43 will be cleared from the wheels 36,so that the reading-section of the front may be turned as desired, andwhen in the desired position by moving the bar 40 inward the teeth willbe engaged with the wheels by passing into notches thereof.

In Figs. 9 andlO I have shown the desk-top 45 as made in the usual formof a flat or substantially flat topped desk. The legs 46 are -ofskeleton form and at the front and rear edges are channeled, as at 47,to receive the ing upper and lower walls, between which nuts f 5l areplaced, and through these nuts'screwrods 52 pass. The screw-rods in thismodification have their upper ends passed into sockets 53, attached tothe desk-top, and the rods are secured by set-bolts 54. By thisconstruction the desk-top may be readily removed from the screw-rodswhen desired. The lower ends of the nuts 51 are provided withbevel-gears 55, engaged by bevel-pinions 56 on a shaft 57, which isprovided at its center with a crankhandle 58. By turning this shaft 58it is obvious that the desk-top, through the medium of thescrew-gearing,may be raised or lowered. In this modification the desk isalso provided with a foot-rest 27, which is similar to the one firstdescribed, excepting that the slotted arms extend downward instead ofupward.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. A desk, comprising a cabinet, afront closuretherefor, consisting of upper and lower sections, the lower sectionbeing hinged to the lower portion of the cabinet, a shaft to which theupper section is attached, notched wheels on said shaft, and a slidinglocking-bar for engafging with said wheels, substantially as specifie 2.In a desk, a cabinet, a front section therefor forming a book-support, ashaft mounted to turn in bearings on the cabinet, notched wheels on theends of said shaft, arms extended from the wheels and connected to saidbookrest section, and a sliding bar adapted to engae with the wheels,substantially as speciiie In testimony whereof I have signed my name tothis specification in the presence of two subscribing witnesses.

OLIVER CHARLES DORNEY.

Witnesses: e

FRANK M. TRESLER, CHARLES P. MILLER.

